Question

It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.    

   A. distinguish          B. separate           C. identify           D. recognize

Answer 1

A

解析:

A考查动词词义辨析。句意：对专家来说不容易把人患的猪流感和普通流感区分开来。Distinguish---from把----与---分别开来；separate----from---把---与----分隔；identify辨别；recognize认出。